722954440 has 32 divisors (see below), whose sum is σ = 1751775480. Its totient is φ = 266936832.

The previous prime is 722954437. The next prime is 722954443. The reversal of 722954440 is 44459227.

It is an interprime number because it is at equal distance from previous prime (722954437) and next prime (722954443).

It can be written as a sum of positive squares in 4 ways, for example, as 667808964 + 55145476 = 25842^2 + 7426^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 722954440.

It is not an unprimeable number, because it can be changed into a prime (722954443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 694629 + ... + 695668.

Almost surely, 2^722954440 is an apocalyptic number.

It is an amenable number.

722954440 is an abundant number, since it is smaller than the sum of its proper divisors (1028821040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

722954440 is a wasteful number, since it uses less digits than its factorization.

722954440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390321 (or 1390317 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 722954440 is about 26887.8121088347. The cubic root of 722954440 is about 897.5052060643.

The spelling of 722954440 in words is "seven hundred twenty-two million, nine hundred fifty-four thousand, four hundred forty".